January 2

Conference of 23 industrial unionists in Chicago leads to formation of IWW, the Industrial Workers of the World, also known as Wobblies - 1905

In what became known as Palmer Raids, Attorney General Mitchell Palmer arrests 4,000 foreign-born labor agitators. He believed Communism was “eating its way into the homes of the American workman,” and Socialists were causing most of the country’s social problems - 1920

An underground explosion at Sago Mine in Tallmansville, W. Va., traps 12 miners and cuts power to the mine. Eleven men die, mostly by asphyxiation. The mine had been cited 273 times for safety violations over the prior 23 months - 2006